He was referring to a huge circular metal device planted on the sea floor.

On each door is a useful little round metal device.

Inside was a metal device, more than one foot square.

It uses a small metal device (a staple) to put them together.

It was a pear-shaped metal device that had a key which could be turned.

The most common design of a heat sink is a metal device with many fins.

Inside the room, David was strapped to a chair with a large, rusty metal device locked onto his head.

She took soil samples by pushing a metal device six inches into the ground.

They pulled out more of the heavy metal devices.

But his eyes kept wandering to a chunky metal device that stood on the floor.